ASUS PRIME B550M-K Micro ATX AM4 Motherboard DDR4 Gigabit LAN
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ASUS
90MB14V0-M0EAY0
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ASUS PRIME B550M-K Micro ATX AM4 Motherboard
A practical AMD B550 Micro ATX motherboard for AM4 desktop builds, with DDR4 support, PCIe 4.0-ready expansion, dual M.2 storage and Realtek Gigabit LAN.
AMD B550AM44× DDR4Dual M.2
The ASUS PRIME B550M-K is a Micro ATX motherboard for AMD AM4 desktop systems, designed for practical Ryzen 5000 Series, 5000 G-Series, 4000 G-Series and 3000 Series builds. It is a sensible choice for compact home, office and value gaming PCs where DDR4 memory, PCIe 4.0-ready graphics support, dual M.2 storage and straightforward Gigabit wired networking are the main priorities.
Compatibility Note: Please confirm CPU, DDR4 memory, case, cooler and BIOS compatibility before purchase. This motherboard uses the AMD AM4 socket and does not support newer AM5 processors or DDR5 memory. Built-in Wi-Fi is not listed for this model.
Best For
✓ AMD Ryzen AM4 desktop builds
✓ Compact Micro ATX systems
✓ Dual M.2 SSD configurations
✓ Value office and gaming PCs
Key Features
AM4 Ryzen Platform
AMD B550 chipset support makes this board suitable for compatible Ryzen AM4 processors, including Ryzen 5000, 5000 G-Series, 4000 G-Series and 3000 Series desktop CPUs.
Four DDR4 Memory Slots
Four DDR4 DIMM slots support up to 128GB memory, giving compact systems better upgrade room than basic two-slot boards.
Dual M.2 Storage
Two M.2 slots provide flexible SSD storage options, including PCIe 4.0 support on the primary slot with compatible Ryzen processors.
Simple Everyday Connectivity
Realtek Gigabit LAN, HDMI, DVI-D, D-Sub, rear USB 3.2 Gen 2 Type-A and ASUS protection features make it practical for everyday AM4 builds.
Technical Specifications
Frequently Asked Questions
Singular Expert Insight
Choose this model if you need a practical AM4 Micro ATX motherboard with four DDR4 slots, dual M.2 storage and Gigabit LAN for a value Ryzen build. If you need built-in Wi-Fi, 2.5G LAN, USB-C or a newer DDR5 platform, consider a higher-tier B550 or AM5 motherboard instead.
Buyer’s Guide
Buy it if
You are building or upgrading an AMD AM4 desktop and want Micro ATX sizing, DDR4 support, PCIe 4.0-ready graphics, dual M.2 storage and Gigabit LAN.
Skip it if
You need built-in Wi-Fi, 2.5G LAN, USB-C, DDR5 memory, AM5 processor support or a full-size ATX board with more expansion space.
Also consider
Consider a Wi-Fi-equipped B550 motherboard if wireless networking is required, or an AM5 B650/B850 motherboard if you are moving to newer Ryzen processors and DDR5 memory.
Features - ASUS - 90MB14V0-M0EAY0
More Details
Product Code
04:338114
EAN Code
4718017758284
Manufacturer
ASUS